Most of the HVAC system components are made of metals. The most commonly used metals in HVAC systems are Steel and copper. While copper is used for smaller piping and is very expensive, Steel, on the other hand, is not just cheaper but is also a commonly used material for large sizes. Unlike copper, Steel can also combat higher pressure and is a perfect choice for hot and cold water.
Following are the types of steel applications in the HVAC system: -
Black Steel ASTM A53 / A135 – These light wall black steel pipes are used for chilled and heating water services of 8 inches and above
Black Steel Pipes ASTM A120 and A53 – Schedule 40 black steel pipes are used for services like chilled and hot water piping, miscellaneous drains, chemical treatments, steam vent and emergency generator exhaust.
Galvanised Steel Pipes ASTM A120 – Schedule 40 galvanised pipes are used for miscellaneous indirect wastewater pipes
Type 304 or Type 306 Stainless Steel – Stainless Steel is used in pipework and boilers because of its higher resistance to moisture and corrosion, especially when it comes to the air we breathe; it is vital to avoid the accumulation of harmful mould.
Mild Steel is commonly used for pipework and other HVAC constituents like pumps.
Factors to consider before selecting HVAC material
Corrosion – Corrosion is the biggest concern of any HVAC manufacturer. It can be caused by acidic gases, increased temperature and humidity. Environmental understanding is essential in material selection.
Coating options – When a coating is applied in coil form before manufacturing, it is called continuous coil coating. This process forms a protective layer between the coil and the environmental conditions. A thinner coating enables better heat transfer. Generally, there are four types of coatings – polyester, epoxy, hybrids and anti-microbial. You can select coating basis your requirements. The polyester coating has good physical properties, durability and flexibility. Epoxy will give you a hard, metallic, non-toxic finish. The hybrid coating can be used if you are looking at anti-corrosive coatings for metallic substrates. Lastly, the anti-microbial coating is a good option if you are looking at lower maintenance and easy-to-clean coating.
At JSW One MSME, we have a diverse inventory of steel grades and finishes to meet all your needs regarding the manufacturing of HVAC equipment. Our dedicated support team ensures that all your orders are processed quickly and efficiently.
Contact us today for all your HVAC steel requirements.